Blogs

About this blog

I'm a well-known mainframe performance guy, with almost 30 years of experience helping customers manage systems. I also dabble in lots of other technology. I've sought to widen the Performance role, incorporating aspects of infrastructural architecture.

Find us on Facebook

One of the problems with having a presentation with a topical title is that you keep having to update the darned thing. :-) "Memory Matters in 2007" is a case in point. It's morphed over the years from two presentations: "Central Storage Performance" and "Expanded Storage Performance" (the latter of which eventually became obsolete) to a presentation that covered OS/390 real memory, DFSORT and DB2... [More]

Last week I attended GSE Conference for the first time in a long while. And I'm very glad I did. I very much enjoyed presenting Memory Matters in 2008 . If you've seen me present it before you might notice some minor tweakings. We learn as we go, don't we. :-) As usual the challenge is "too much material". I attended a number of other presentations. For me the highlights were: Fabio Massimo... [More]

I don't think I've mentioned this before in this blog but Tivoli Workload Scheduler (TWS) has a nice "WLM Integration" feature. With it TWS can change the Service Class a job runs in - before submission. The main purpose of this is to elevate Critical Path work. We wrote about this in the Redbook mentioned in Touring The Upcoming Batch Optimization On z/OS Redbook , and so some of... [More]

Back in May I wrote about a new batch residency planned for this October and invited good people to apply to join the team. It's been very pleasing how many people applied to be residents and the high quality of the entrants: It was genuinely difficult to pick the eventual team. We also had to reduce the scope a bit - which was a disappointment to both Frank Kyne and I. So, if you didn't get... [More]